101122100020111 has 4 divisors (see below), whose sum is σ = 101195323844824. Its totient is φ = 101048876195400.

The previous prime is 101122100020099. The next prime is 101122100020141. The reversal of 101122100020111 is 111020001221101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101122100020111 - 2³⁹ = 100572344206223 is a prime.

It is a super-2 number, since 2×101122100020111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101122100020091 and 101122100020100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101122100020141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36611910285 + ... + 36611913046.

It is an arithmetic number, because the mean of its divisors is an integer number (25298830961206).

Almost surely, 2^{101122100020111} is an apocalyptic number.

101122100020111 is a deficient number, since it is larger than the sum of its proper divisors (73223824713).

101122100020111 is an equidigital number, since it uses as much as digits as its factorization.

101122100020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73223824712.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 101122100020111 its reverse (111020001221101), we get a palindrome (212142101241212).

The spelling of 101122100020111 in words is "one hundred one trillion, one hundred twenty-two billion, one hundred million, twenty thousand, one hundred eleven".